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Outstanding Beneteau 311. Was great lakes fresh water boat until 2018. Bottom done in July of 2021 with 3 coats of Interlux Micro CSC HS. Upgrades in 2021-2022 as follows: .2021 Raymarine EV 100 autopilot .2021 Bimini w/ windshield w/ new SS frame and hardware .2021 Two new 100AH batteries .2021 Plastimo 135 compass .2021 Renogy 180 watt solar panel w/ controller .2021 all new Lewmar port screens .2021 all new running rigging .2021 DC/USB ports .2021 V berth/aft cabin bedding .2022 New Isotherm refrigeration/freezer .2022 150’ 3 strand anchor line .2022 Two 8” SS midship cleats
Equipment: Raymarine Dragonfly chartplotter Raymarine I50 wind speed Raymarine I50 depth and speed 2 Lewmar ST30 sheet winches 1 Lewmar ST16 halyard winch Delta 22lb anchor w/ brand new 150’ 1/2”line, 25’ chain Fortress FX16 W/ line and chain Force 10 transom mount grill Wind scoop Force 10 stove/oven 4 batteries 360AH total Outboard motor out plus motor lift system custom galley counter extension Main cabin DC/USB outlets Aft cabin DC outlet Main cabin stereo/CD Standard Horizon VHF This 311 has been lightly used, main and 116% genoa are in great shape. Yanmar 18 HP has only 258 hours.
The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.
Classic hull speed formula:
Hull Speed = 1.34 x √LWL
A more accurate formula devised by Dave Gerr in The Propeller Handbook replaces the Speed/Length ratio constant of 1.34 with a calculation based on the Displacement/Length ratio.
Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio.311
Hull Speed = Max Speed/Length ratio x √LWL
A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.
SA/D = SA ÷ (D ÷ 64)2/3
A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.
Ballast / Displacement * 100
A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.
D/L = (D ÷ 2240) ÷ (0.01 x LWL)³
This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.
Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)
This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.
CSV = Beam ÷ ³√(D / 64)
Similar to (see) OCEANIS 311 CLIPPER.
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